Power supply



FIG. 1 is a front, right and top perspective view of a power supply, showing my design.

FIG. 2 is a rear, left and bottom perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left side elevation view thereof.

FIG. 6 is a right side elevation view thereof.

FIG. 7 is a top plan view thereof.

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a partial enlarged view of an area labeled 9 in FIG. 2 comprising a plurality of holes.

The broken lines shown in the drawings are included for the purpose of illustrating portions of the power supply that form no part of the claimed design. 

CLAIM The ornamental design for a power supply, as shown and described. 